No general edge effects for invertebrates at Afromontane forest/grassland ecotones
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Cites background from "No general edge effects for inverte..."
...There is evidence that in South Africa, they are edge specialists in Afromontane forest/ grassland interfaces (Kotze and Samways 2001)....
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Cites background from "No general edge effects for inverte..."
...Anthropogenic disturbance may affect species richness and diversity in several ways, and responses may vary within studies among taxonomic or functional groups or among studies within the same group (Kimberling et al., 2001; Kotze and Samways, 2001; Perfecto et al., 2003; Rainio and Niemelä, 2003; Hill and Hamer, 2004; Schulze et al., 2004; Barlow et al., 2007; Basset et al., 2008; Fonseca et al., 2009; Pardini et al., 2009)....
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...…ways, and responses may vary within studies among taxonomic or functional groups or among studies within the same group (Kimberling et al., 2001; Kotze and Samways, 2001; Perfecto et al., 2003; Rainio and Niemelä, 2003; Hill and Hamer, 2004; Schulze et al., 2004; Barlow et al., 2007; Basset et…...
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102 citations
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...In some studies, forest edges are supposed to function as source habitats (Pulliam, 1988) or stepping stones (Den Boer, 1990) for small scale dispersal processes after disturbances (Magura, 2002) as edges contain species from both adjacent habitats (Kotze and Samways, 2001)....
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References
11,748 citations
"No general edge effects for inverte..." refers background in this paper
...Didham (1997) pointed out that an increase in insect abundance and diversity at forest edges is almost certainly a result of invasion of generalist species from disturbed habitats outside the forest fragment, also termed the mass effect (Shmida and Wilson 1985). The question is then, whether edge effects are a characteristic of natural habitat boundaries, or whether they are an artefact of anthropogenically created landscape patterns. Kolasa and Zalewski (1995) argued that the identification of an ecotone depends on the time over which interactions of two habitats are observed. Furthermore, Wolda (1992) emphasised that invertebrate assemblages inevitably change over time....
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...Didham (1997) pointed out that an increase in insect abundance and diversity at forest edges is almost certainly a result of invasion of generalist species from disturbed habitats outside the forest fragment, also termed the mass effect (Shmida and Wilson 1985)....
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...Cluster analysis aims to find natural groupings of samples such that samples within a group are more similar to each other than samples in different groups (Clarke and Warwick 1994)....
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...Didham (1997) pointed out that an increase in insect abundance and diversity at forest edges is almost certainly a result of invasion of generalist species from disturbed habitats outside the forest fragment, also termed the mass effect (Shmida and Wilson 1985). The question is then, whether edge effects are a characteristic of natural habitat boundaries, or whether they are an artefact of anthropogenically created landscape patterns. Kolasa and Zalewski (1995) argued that the identification of an ecotone depends on the time over which interactions of two habitats are observed....
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6,230 citations
2,759 citations
"No general edge effects for inverte..." refers background in this paper
...Edge effects, manifested as elevated species richness (Odum 1971; Rapoport et al. 1986; Murcia 1995; Risser 1995) as a change in species interactions (Wilcove 1985; Andren and Angelstam 1988) or abiotic factors (Murcia 1995) are often associated with ecotones....
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...In our study there was no significant increase in numbers of carabid and ant individuals or species at the sharp Afromontane forest edges, i.e. no biological edge effect (Murcia 1995; Dennis 1997) was observed....
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...Edge effects, manifested as elevated species richness (Odum 1971; Rapoport et al. 1986; Murcia 1995; Risser 1995) as a change in species interactions (Wilcove 1985; Andrén and Angelstam 1988) or abiotic factors (Murcia 1995) are often associated with ecotones....
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...no biological edge effect ( Murcia 1995; Dennis 1997) was observed....
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...Edge effects, manifested as elevated species richness (Odum 1971; Rapoport et al. 1986; Murcia 1995; Risser 1995) as a change in species interactions (Wilcove 1985; Andren and Angelstam 1988) or abiotic factors ( Murcia 1995 ) are often associated with ecotones....
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2,534 citations
2,406 citations
Additional excerpts
...(Acocks 1988)....
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